forty forty-one forty-two forty-three forty-four forty-five forty-six forty-seven forty-eight forty-nine fifty fifty-one fifty-two fifty-three fifty-four fifty-five fifty-six fifty-seven fifty-eight fifty-nine sixty
You had it right. It is forty.
"Forty thousand" in numbers is "40,000"
ten, twenty, thirty ,forty, fifty, sixty, seventy, eighty, ninety, one hundred is your list. Note that "forty" is not spelled "fourty" as you might expect.
In words, it would be: nine hundred fifty dollars In numbers, it would be: $950.00
Typically you would leave it in numberical form. But i can be written in a few different ways. Forty Nine and a half Forty Nine Point Fifty Forty Nine and Fifty Hundredths
Fifty-four thousand, six hundred forty.